Back panel for flasher casings or the like



Sept. 20, 1949. y R R GOHQRN I 2,482,266

BACK PANEL FOR FLASHER CASINGS 0R THE LIKE Filed Feb. 11. 1947 Patented Sept. 20, 1949 BACKPANEI) FR, FLSHER'CA'SIN GS R THE LIKE Robert It. Goshen-n, Gincinnati, hiog. assignorto Automatic.V Electrical Devices Campania.. Cin-- cinnati, Ohio,a corporation of Ohio Application` February 11, 1947,- Seriali 1510.227 ,789i

3 Claims (Cl. 177-329) 1. My invention relates to; a gaseous tube; flasher circuit and back. panel mounting therefor. my objecty to provide a back panel which will compactly retain and mount the` elementsv of' av gaseous tube flasher consisting of a battery' or.' batteries a. condenser and resistor and a tube socket, wherein strength. and. rigidity is provided and where ready access may be had due to the arrangement:v of the parte for' the replacing, oi* the batteries or tube a minimum of. danger tronr shockr It is particularly my object to econernizespacel so that the complete unit and its necessary parts will be between and at one end of the batteries so that the batteries may-be withdrawn as required, and. wherein the construction oi the panel itself is such as to rigidly support the` bat-f teries, and by a novel arrangement, provide a mounting for the gaseousV tube which will t compactly in between the walls supporting the' batteries, with a minimum of space being required;

It is my object to provide such construction inv a rectangular panel ofv a width only slightly' more than that of two dry cells and of a height only slightly more than that required for the batteries plus the diameter of the condenser.

The foregoing objects and other objects to which reference will be made in the ensuing description, I accomplish by that certain combination and arrangement of parts of which I have illustrated a preferred embodiment.

In the drawings:

Figure 1 is a wiring diagram of the circuit involved.

Figure 2 is a front elevation of the panel construction showing all the elements in position.

Figure 3 is a sectional view as would appear if taken along the lines 3-3 in Figure 2.

Figure 4 is a section along the lines 4--4 of Figure 2.

The back panel is composed of a metal plate I having the edges ilanged over as shown at 2, and with openings as indicated at 3. A U-shaped angle plate having a base 4 and upstanding side walls 5 and flanged over sides 6 is spot welded as indicated at 4a, to the back panel. This plate has three openings through which are extended rivets 8 before the back panel is spot welded in position. An insulative panel 9 has matching holes II) through which the rivets extend and a threaded shell II also has matching holes I2. When the heads of the rivets are clinched the Whole assembly is held together rigidly and the outer wall of the shell is grounded to the base.

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2'. The.Y insulative panel 9. has aspring plate I3.- riveted toit as M and undernea-iflrv an insulative panel I:5- is placed, before the heads off the rivets 8 are clinched.

Another angle It isV spot welded toy the back plate and riveted` to the upstanding; wall. of the angle there is aV sturdy insulative: panel Il.

Thebatteries illustrated in; the particular unit shown consist in two 6.71/2` volt dry: cell4 packs I8; (there are 45 dry cellsf in each of' the packsl..

The: resistor I:9 shown is a. resistor' of 2.2 megohms; The glow` lamp 2li illustrated is of typemanufactured; and; sold, by the Generali. Elec.- tric Company and'. known as their typeV NE. 4.0, 3f. watt neon glow lamp having a. starting voltage of volts D.. The condenser 2t hasacapacityof 1 microfarad.

The socket. shelfl tI is connected by means. of the rivets 8f to the back plate and. is, a. current carrying part. One of the contact springs 22 is: connectedto the-.backplate as shown at 23a This connects from. the. posi-tive polev of the batteryr` shown. at; the right. The condenser 2li is con` nect'ed between the: two outside contact. springs 22 as with wires 24 from the negative pole of the battery on the left to the positive pole of the battery on the right. The resistor I9 is connected as with wires 25 between the two inside contact springs 2B from the positive terminal of the battery on the left to the negative terminal of the battery on the right as illustrated, thus placing it in series with the condenser 2I and the two batteries, but between the batteries. The center contact plate I3 to the lamp is connected to the end contact spring so that the negative terminal of the battery on the left is connected to the center contact plate as with a wire 21, thereby completing the circuit.

The placing of the resistor I9 between the batteries makes it unlikely for a person handling the device to receive a shock since it is impossible to touch two points in the battery circuit so as to cut out the resistor I9 and receive a voltage drop of volts from the combined batteries in series.

Referring to the wiring diagram Figure 1, the two batteries I8, each having a voltage of 671/2 volts, are wired in series with a resistor I9 of 2.2 megohms between them. A condenser 2I of 1 microfarad is wired in series with the batteries and resistor I9 so as to be charged by the combined batteries totaling 135 volts. Connected across the condenser 2| and in parallel therewith is a glow lamp 20 with a starting voltage of 85 volts. The high resistance of the resistor I9 3 prevents the batteries I8, I8 from starting the glow lamp 20, since the voltage drop at the glow lamp is less than the required starting voltage. The batteries I8, I8, therefore, charge the condenser 2I. When the condenser 2| is charged above the starting voltage of the glow lamp 2D, the condenser 2| will discharge through the lamp 20 and cause it to flash. In the circuit described, the duration of the flash of the glow lamp will be about one one-hundredth of a second and will be repeated at the rate of about-nity iiashes per minute. Y

Due to the short duration of the iiash of the glow lamp and its 'relative slow rate, the life of a circuit such as I have described should bea number of years. The current used by the glow lamp will be just about enough to keep the batteries in non-deteriorating condition.

When it is desired to replace the battery all that is necessary is to pull upwardly on the edges Y of the battery remote from the outwardly extendby 1% inches thick, totaling a surface area of- 51/2 by 31/2 inches, and yet the entire assembly is arranged on a back plate 65/3Iinches high, be-

tween the flanged edges 2. l

Having thus described my invention, WhatlI claim as new and wish to secure by Letters Patent 1. A back panel for a asher casing consisting of a plate provided with flanged edges for attachment to a flasher casing, a U-shaped plate consisting of a base attached medially of the panel,

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extensions extending up at right angles from the base at each side edge of the base, said extensions having end portions formed outwardly at right angles, whereby said outwardly formed portions will allow suiiicient spring for releasably securing flatwise a pair of dry batteries, one on one side andthe other on the other side of the U-shaped plate. Y

2. A back panel for a flasher casing consisting of a plate provided with flanged edges for attachment to a flasher casing, a U-shaped plate consisting of a base attached medially of the panel, extensions extending up at right angles from the base at each side edge of the base, said extensions having end portions formed outwardly at right angles, whereby said outwardly formed portions will allow sufcient spring for releasably securing fiatwise a pair of dry batteries, one on I one side and the other on the other side of the U-shaped plate, a screw socket assembly fiorireceiving a lamp mounted in the space between the extensions of the basejwhich extend upwardly at right angles and rivets extending through holes in the base clinched and holding the screw socket assembly rigidly in position.

3. A back panel for a flasher casing consisting of a U-shaped member medially mounted on the panel, a tube socket mounted medially of the U- shaped member and means extending outwardly from the U-shaped member for resiliently securing a pair of dry batteries one on one side and onev on the other. v

Y ROBERT R. GOSHORN REFERENQES CITED f The following references are ofhreordY inthe le of this patent: Y v e l Y UNITED STATES PATENTS Y Y 

